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358 Commits

Author SHA1 Message Date
Chris Lattner
29bdac4928 eliminate the now-unneeded context argument of MBB::getSymbol() 
llvm-svn: 98451
 2010-03-13 21:04:28 +00:00
Chris Lattner
e468f88b26 rearrange MCContext ownership. Before LLVMTargetMachine created it 
and passing off ownership to AsmPrinter.  Now MachineModuleInfo
creates it and owns it by value.  This allows us to use MCSymbols
more consistently throughout the rest of the code generator, and
simplifies a bit of code.  This also allows MachineFunction to 
keep an MCContext reference handy, and cleans up the TargetRegistry
interfaces for AsmPrinters.

llvm-svn: 98450
 2010-03-13 20:55:24 +00:00
Chris Lattner
5ea039ad5c remove gone method, grr symlinks. 
llvm-svn: 98392
 2010-03-12 21:30:49 +00:00
Chris Lattner
9e4cafe6f1 inline the now-trivial implementation of GetGlobalValueSymbol into 
some of its callers.

llvm-svn: 98388
 2010-03-12 21:09:07 +00:00
Chris Lattner
c7b46f9d9c give Mangler access to TargetData. 
llvm-svn: 98378
 2010-03-12 20:47:28 +00:00
Chris Lattner
be3242b523 finally give Mangler a getSymbol method, which returns an MCSymbol 
for a global instead of messing around with string buffers.

llvm-svn: 98366
 2010-03-12 18:55:20 +00:00
Chris Lattner
2eff505fba make the mangler take an MCContext instead of an MAI. 
No functionality change.

llvm-svn: 98363
 2010-03-12 18:44:54 +00:00
Richard Osborne
6d3e92dfee Add a new jump table encoding to indicate jump tables entries 
are inside the function by the target at the point of use.

llvm-svn: 98255
 2010-03-11 14:58:16 +00:00
Chris Lattner
ac2361a9b0 set the temporary bit on MCSymbols correctly. 
llvm-svn: 98124
 2010-03-10 02:25:11 +00:00
Chris Lattner
ba35a67062 reapply r98035: 
Now that setStartLabel takes an MCSymbol, we can de-ID'ize
beginScope and RecordSourceLine.

llvm-svn: 98047
 2010-03-09 04:54:43 +00:00
Eric Christopher
66194fbf86 Speculatively revert r98035. It appears to have caused a set of buildbot 
failures.

llvm-svn: 98039
 2010-03-09 02:36:31 +00:00
Chris Lattner
06c5e9060c Now that setStartLabel takes an MCSymbol, we can de-ID'ize 
beginScope and RecordSourceLine.

llvm-svn: 98035
 2010-03-09 02:08:02 +00:00
Chris Lattner
9e57c676dd mcstreamerize AsmPrinter::printLabel. 
llvm-svn: 98025
 2010-03-09 01:02:30 +00:00
Chris Lattner
b14490d912 add a EmitSymbolValue convenience method to MCStreamer. 
llvm-svn: 98017
 2010-03-09 00:39:24 +00:00
Chris Lattner
9889c1eb9e move .set generation out of DwarfPrinter into AsmPrinter and 
MCize it.

llvm-svn: 98010
 2010-03-08 23:58:37 +00:00
Devang Patel
3b548aa8e2 Avoid using DIDescriptor.isNull(). 
This is a first step towards eliminating checks in Descriptor constructors.

llvm-svn: 97975
 2010-03-08 20:52:55 +00:00
Devang Patel
bc97f6b757 Revert r97947. 
llvm-svn: 97963
 2010-03-08 19:20:38 +00:00
Devang Patel
fe28599f6f Avoid using DIDescriptor.isNull(). 
This is a first step towards eliminating unncessary constructor checks in light weight DIDescriptor wrappers.

llvm-svn: 97947
 2010-03-08 18:25:48 +00:00
Chris Lattner
e4f249bc06 use OutStreamer.EmitCodeAlignment for alignment in the text 
segment.

llvm-svn: 96967
 2010-02-23 18:46:22 +00:00
Chris Lattner
1fa9c2cce4 move isOnlyReachableByFallthrough out of MachineBasicBlock into AsmPrinter, 
and add a sparc implementation that knows about delay slots.  Patch by
Nathan Keynes!

llvm-svn: 96492
 2010-02-17 18:52:56 +00:00
Dan Gohman
4a618827de Fix "the the" and similar typos. 
llvm-svn: 95781
 2010-02-10 16:03:48 +00:00
Chris Lattner
ea26fa9971 fix a layering violation: VirtRegRewriter.cpp shouldn't use AsmPrinter.h. 
llvm-svn: 95748
 2010-02-10 01:23:18 +00:00
Chris Lattner
74e6852510 Move verbose asm instruction comments to using MCStreamer. 
The major win of this is that the code is simpler and they 
print on the same line as the instruction again:

        movl    %eax, 96(%esp)          ## 4-byte Spill
        movl    96(%esp), %eax          ## 4-byte Reload
        cmpl    92(%esp), %eax          ## 4-byte Folded Reload
        jl      LBB7_86

llvm-svn: 95738
 2010-02-10 00:47:53 +00:00
Chris Lattner
ff68a42121 print all the newlines at the end of instructions with 
OutStreamer.AddBlankLine instead of textually.

llvm-svn: 95734
 2010-02-10 00:36:00 +00:00
Chris Lattner
b06015aa69 move target-independent opcodes out of TargetInstrInfo 
into TargetOpcodes.h.  #include the new TargetOpcodes.h
into MachineInstr.  Add new inline accessors (like isPHI())
to MachineInstr, and start using them throughout the 
codebase.

llvm-svn: 95687
 2010-02-09 19:54:29 +00:00
Dan Gohman
227077d1be Implement AsmPrinter support for several more operators which have 
direct MCExpr equivalents. Don't use MCExpr::Shr because it isn't
consistent between targets.

llvm-svn: 95620
 2010-02-09 00:02:37 +00:00
Chris Lattner
ebc970e4eb now that @GOTOFF is no longer represented as a suffix on a 
MCSymbol, we can remove the 'suffix' argument of 
GetBlockAddressSymbol.  Do so.

llvm-svn: 95601
 2010-02-08 23:10:08 +00:00
Dan Gohman
e51b57bee0 ConstantFoldConstantExpression can theoretically return the original 
expression; don't go into an infinite loop if it does.

llvm-svn: 95591
 2010-02-08 22:19:11 +00:00
Dan Gohman
4268d6a7c3 When CodeGen'ing unoptimized code, there may be unfolded constant expressions 
in global initializers. Instead of aborting, attempt to fold them on the
spot. If folding succeeds, emit the folded expression instead.

This fixes PR6255.

llvm-svn: 95583
 2010-02-08 22:02:38 +00:00
Bill Wendling
6510dc8dc3 An empty global constant (one of size 0) may have a section immediately 
following it. However, the EmitGlobalConstant method wasn't emitting a body for
the constant. The assembler doesn't like that. Before, we were generating this:

  .zerofill __DATA, __common, __cmd, 1, 3

This fix puts us back to that semantic.

llvm-svn: 95336
 2010-02-05 00:17:02 +00:00
Chris Lattner
0b78cc2af5 don't emit \n's at the start of X86AsmPrinter::runOnMachineFunction, 
.o files don't like that.

llvm-svn: 95187
 2010-02-03 01:49:49 +00:00
Chris Lattner
f1866ab682 privatize a bunch of methods and move \n printing into them. 
llvm-svn: 95186
 2010-02-03 01:46:05 +00:00
Chris Lattner
996ec840d0 rejigger the world so that EmitInstruction prints the \n at 
the end of the instruction instead of expecting the caller to
do it.  This currently causes the asm-verbose instruction 
comments to be on the next line.

llvm-svn: 95178
 2010-02-03 01:09:55 +00:00
Chris Lattner
41ad1905c9 sink handling of target-independent machine instrs (other 
than DEBUG_VALUE :(  ) into the target indep AsmPrinter.cpp
file.   This allows elimination of the 
NO_ASM_WRITER_BOILERPLATE hack among other things.

llvm-svn: 95177
 2010-02-03 01:00:52 +00:00
Chris Lattner
b0d44c3807 refactor code so that LLVMTargetMachine creates the asmstreamer and 
mccontext instead of having AsmPrinter do it.  This allows other 
types of MCStreamer's to be passed in.

llvm-svn: 95155
 2010-02-02 23:37:42 +00:00
Chris Lattner
32445d300f move handling of asm-verbose out of AsmPrinter.cpp into LLVMTargetMachine.cpp with the rest of the command line options. 
llvm-svn: 95152
 2010-02-02 22:54:51 +00:00
Chris Lattner
c968f4475e add target hooks for emitting random gunk before and after the function body. 
llvm-svn: 94732
 2010-01-28 01:58:58 +00:00
Chris Lattner
73de5fbfc3 Give AsmPrinter the most common expected implementation of 
runOnMachineFunction, and switch PPC to use EmitFunctionBody.
The two ppc asmprinters now don't heave to define 
runOnMachineFunction.

llvm-svn: 94722
 2010-01-28 01:28:58 +00:00
Chris Lattner
565896b9eb emit a 0 byte instead of a noop if a function is empty on darwin. 
"0" is nice and target independent.

llvm-svn: 94718
 2010-01-28 01:06:32 +00:00
Chris Lattner
94a946cac4 Remove the argument from EmitJumpTableInfo, because it doesn't need it. 
Move the X86 implementation of function body emission up to 
AsmPrinter::EmitFunctionBody, which works by calling the virtual
EmitInstruction method.

llvm-svn: 94716
 2010-01-28 01:02:27 +00:00
Chris Lattner
2b796241a7 Drop the argument to AsmPrinter::EmitConstantPool and make it virtual. 
Overload it in the ARM backend to do nothing, since is does insane
constant pool emission.

llvm-svn: 94708
 2010-01-28 00:19:24 +00:00
Chris Lattner
cd99546b03 rename printVisibility to EmitVisibility and make it private, 
constify EmitLinkage.

llvm-svn: 94705
 2010-01-28 00:05:10 +00:00
Chris Lattner
bc1e6f0873 add a new AsmPrinter::EmitFunctionEntryLabel virtual function, 
which allows targets to override function entry label emission.
Use it to convert linux/ppc to use EmitFunctionHeader().

llvm-svn: 94667
 2010-01-27 07:21:55 +00:00
Chris Lattner
bac7498f8e mcize label emission for functions. 
llvm-svn: 94624
 2010-01-26 23:53:39 +00:00
Chris Lattner
fc2e376a15 use EmitLinkage for functions as well as globals. One output 
change is that we now use ".linkonce discard" for global variables
instead of ".linkonce samesize".  These should be the same, just less
strict.  If anyone is interested in mcizing MCSection for COFF targets,
this should be easy to fix.

llvm-svn: 94623
 2010-01-26 23:51:52 +00:00
Chris Lattner
dbf5a7617d pull linkage emission code out to a new EmitLinkage function. 
llvm-svn: 94621
 2010-01-26 23:47:12 +00:00
Chris Lattner
22fc38dd4f rearrange some directives, no functionality change. 
llvm-svn: 94620
 2010-01-26 23:41:48 +00:00
Chris Lattner
c7b91156e4 now that enough stuff is constified, move function header printing 
logic up from X86 into the common code.  The other targets will 
hopefully start using this soon.

llvm-svn: 94614
 2010-01-26 23:18:44 +00:00
Chris Lattner
b657c4cdc3 emit jump table an alias ".set" directives through MCStreamer as 
assignments.

.set x, a-b

is the same as:

x = a-b

llvm-svn: 94596
 2010-01-26 21:53:08 +00:00
Chris Lattner
ff234e09b9 Eliminate SetDirective, and replace it with HasSetDirective. 
Default HasSetDirective to true, since most targets have it.

The targets that claim to not have it probably do, or it is
spelled differently. These include Blackfin, Mips, Alpha, and
PIC16.  All of these except pic16 are normal ELF targets, so
they almost certainly have it.

llvm-svn: 94585
 2010-01-26 20:40:54 +00:00